/* 
 * $Id: VideoDecDXVAAllocator.h 1002 2009-02-21 13:16:58Z casimir666 $
 *
 * (C) 2006-2007 see AUTHORS
 *
 * This file is part of mplayerc.
 *
 * Mplayerc is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * Mplayerc is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */


#pragma once

#include <dxva.h>
#include <dxva2api.h>


class CMPCVideoDecFilter;
class CVideoDecDXVAAllocator;


[uuid("AE7EC2A2-1913-4a80-8DD6-DF1497ABA494")]
interface IMPCDXVA2Sample : public IUnknown
{
	STDMETHOD_(int, GetDXSurfaceId()) = 0;
};

class CDXVA2Sample : public CMediaSample, public IMFGetService, public IMPCDXVA2Sample
{
    friend class CVideoDecDXVAAllocator;

public:

    CDXVA2Sample(CVideoDecDXVAAllocator *pAlloc, HRESULT *phr);

    // Note: CMediaSample does not derive from CUnknown, so we cannot use the
    //       DECLARE_IUNKNOWN macro that is used by most of the filter classes.

	STDMETHODIMP			QueryInterface(REFIID riid, __deref_out void **ppv);
    STDMETHODIMP_(ULONG)	AddRef();
    STDMETHODIMP_(ULONG)	Release();

    // IMFGetService::GetService
    STDMETHODIMP GetService(REFGUID guidService, REFIID riid, LPVOID *ppv);

	// IMPCDXVA2Sample
	STDMETHODIMP_(int) GetDXSurfaceId();

    // Override GetPointer because this class does not manage a system memory buffer.
    // The EVR uses the MR_BUFFER_SERVICE service to get the Direct3D surface.
    STDMETHODIMP GetPointer(BYTE ** ppBuffer);

private:

    // Sets the pointer to the Direct3D surface. 
    void SetSurface(DWORD surfaceId, IDirect3DSurface9 *pSurf);

    CComPtr<IDirect3DSurface9>	m_pSurface;
    DWORD						m_dwSurfaceId;
};




class CVideoDecDXVAAllocator : public CBaseAllocator
{
public:
	CVideoDecDXVAAllocator(CMPCVideoDecFilter* pVideoDecFilter, HRESULT* phr);
	virtual ~CVideoDecDXVAAllocator();

 //   STDMETHODIMP GetBuffer(__deref_out IMediaSample **ppBuffer,		// Try for a circular buffer!
 //                          __in_opt REFERENCE_TIME * pStartTime,
 //                          __in_opt REFERENCE_TIME * pEndTime,
 //                          DWORD dwFlags);
 //
 //    STDMETHODIMP ReleaseBuffer(IMediaSample *pBuffer);
 //	    CAtlList<int>				m_FreeSurface;


protected:
	HRESULT		Alloc(void);
	void		Free(void);


private :
	CMPCVideoDecFilter*		m_pVideoDecFilter;

	IDirect3DSurface9**		m_ppRTSurfaceArray;
	UINT					m_nSurfaceArrayCount;

};
